Oil-burner.



W. R. RAY.

OIL BURNER. APPLICATION FILED MAY 8, l9l6.

1,253,422. Patented Jan. 15,1918.

WITNESSES: N ENTOR g Mlliamlflf ay.

I r B3.

- UNITED STATES PATENT canton;

WILLIAM n. RAY, or'sm rninwcisco, can'rronm To all 'whom'z't mayconcern: Be it known that I, WV citizen of the United States, residingat the city and county of San Francisco and State of California, haveinvented new and useful Improvements in Oil-Burners, of WhlCh thefollowing is a specification.

,This invention relates to oil burners and pertains especially to rotaryburners o t type shown and described in my pending application SerialNumber 874,754, filed November 30, 191.4, entitled Oil burners.

One of the objects of the present invention is to provide a hollow motorshaft having a stationary fuel oil feeding pipe passing therethrough topermit delivery of the oil to the rotary atomizer through the shaft,thus permitting partial coolin of the motor, and similar] a pro-heatingoi the oil .before delivery to t e atomizer. Another object of theinvention is to provide means for center ing and adjusting the ositionof the oil deliverin ipe with re ation to the interior wall 0 t e hollowmotor shaft. A further object is toinclose the motor proper with anopen-ended casing and to connect one end of said. casing with thesuction side of the fan; in this manner causing a constant in-rush ofair around the motor which cools the same andsimilarly raises thetemperature of the Further objects will hereinafter appear. Theinvention consists of the parts and the construction and combination ofparts as hereinafter more fully described and s'cflaimed, in which--{Figure 1 is aside elevation of the ,oil burner partly in section.

Fig. 2 is a cross section of line 2-2, Fig. 1. Fig. 3 is a longitudinalsection throu h the motor shaft, showing the position of t e stationaryoil delivering'tube and the means whereby it is adjusted.

Referring to the. drawings in detail, A"indicates a motor; 2 the motorshaftwhich in this instance is hollow, and '3 a centrifugal atomizersecured on the outer end of the hollow shaft. Oil is delivered to theatomizer through a stationary pipe 3 passing through the shaft and airto assist combustion and also atomization of theoil discharged by theatomizeris delivered from a high pressure fan enerallyindicated at 13also secured upon t e shaft 2 and-driven in unison with same.Surrounding the outer bearing 4 of the motor and secured to the H 1AM R.RAY, a I

OIL-BURNER.

Specification of Letters 2mm. P t t Jai 15, 1913; Application and my a,1916. Serial No. 98,167.

bracket 5 which supports said bearing is a cap-like member 6. Thismember is pro- "vided with a-plurality of arms 7 and an extension 8Which is adapted to receive a valve 9 of any suitable construction. Thestationary pipe 3 is screwed into the extension 8 as indicated at 10,and oil delivered by the valve 9 passes downthrough a passage 11,

7 and is larger in diameter than the pipe 3 I which passes therethrough.Passing through the sleeve 13 is a plurality of adjusting screws 14preferably four in number. V These screws are adapted to engage the ipe3 and spring it in one direction or anot 'er, in-this manner prevent-ingrubbin of the pipe, against the interior wall 0 the shaft and making itpossible to adjust the position of the pipe 3 to assume an exact centralposition. The extension 8 is preferably provided with a screw plug 16 atits outer end which may be removed as occasion demands, to permitinsertion of a. cleaning rod or like means not here shown. A rodinserted at this point may be forced directly through the pipe 35 andwillin this manner remove any carbonized oil or other substance whichmight have a tendency to choke the feed pipe. The

' said pipe supported and connected as here shown is simple andsubstantial in'construction, is leak-proof and may be appliedtopractically any form-of centrifugal atom-y izingburner of a type'hereshown. In the o eration of electric motors of the type 's own, it iswell known that the hi h s eed of the armature produces considers 1eheating action." This heat is employed to advantage in the presentinstance as it is trans-.

mitted through the shaft 2 to the oil delivering pipe- 3, in this mannerraising the temerature of the oil to 'such an extent that it 1s moreeasily handled by the centrifugal atomizer and conversely anadvantageous reduction of motor temperature is obtained.

For the purpose of further decreasing the temperature of the motor anopen-ended air around the motor is thus insured'which not only reducesits-temperature, but it also causes a considerable increase in thevtemperature of the air before it passes through the fan and reaches thefire zone.

-The materials and finish of the several parts may otherwise be such asthe judgment and experience of the manufacturer may dictate.

I wish it understood that various changes in form, proportions and minordetails of construction may be resorted to within the scope of theappended claims, and that I do not wish to limit myself to the specificdesign and 'constructionhere shown.

Thefurnacepljate' together with the hinge mounting of. the fancasing-and the oil connections formed through the ,hinges, althoughshown, does not form a part of the present application as it is morethoroughly illustrated .and claimed in my co-pending application, SerialNo, 96,108, filed May 8-, 1916, entitled Oil burner.

Having ,thus deScribed-niy. invention, what I claim and desire to secureby Letters Patent is.:.-.

. 1. In an oil burner, the combination with .an electric motor having ahollow shaft,-of an atomizing, head secured on one. end of the shaft, astationary pi-peextending through the hollow'shaft to-deliver oil to theatomizer and adapted to cool the. motor and heat the oil, and means foradjusting. the oil delivering pipe with relation to the interior wall ofthe hollow shaft.

2. The combination with a motor, a hollow motor shaft, and an atomizingcup secured on the shaft, of a stationary pipe ex tending through .theshaft and having one end extending into the atomizer, meansfordelivering oil to the stationary pipe, and adjustable meansengageable with the stationary pipe .to spring or bend it-with relationto the interior of the hollow shaft. p

3. The combination with a motor, a hollow shaft ,,and a'n-atomizing cupsecured on the shaft,'-of a stationary pipe extending through the shaftand haying one end extending intothe atomizer, a stationary sup} portfor the opposite end of the pipe, having a passage formed thereincommunicating with the pipe, means for. delivering oil to said passageandfa plurality of set-screws in the support engageable with the pipe toadjust its position withrelation to the interior of the hollow shaft.

4. In an oil burner, the combination with a hollow shaft, of means forrevolving the shaft, a centrifugal atomizer on. one-end of the shaft, astationary pipe extending through the shaft and opening into thestationary pipe.

atoniizer, a stationary member supporting the opposite end of the pipe,said member having a passage formed therein communieating with the pipe,means for delivering oil to the passage, means forregulating the flow ofoil through the passage, and means engageable with the stationary pipeadapted to bend or spring it with relation to the interior of thehollowmotor shaft.

5. In an oil burner, the combination with ahollow shaft, of means forrevolving the shaft, a centrifugal atomizer on one end of the "shaft, astationary pipe extending through the shaft and opening into theatomizer, a stationary member supporting the opposite end of. the pipe,said .member having a passage formed'therein communicatingwith the pipe,means for delivering oil to the passage, means for regulating the flowofoil through the passage, and means carried by the support forcentering the pipe with relation to the interior of thehollow shaft andthe atomizer. V

6. The combination with a motor, a hollow shaft, a fanand an atomizingcup-se cured on the shaft, of a stationary pipe extending throughtheshaft and havingone end extending into the atomizer, an open ended.casing inclosing the motor, said casing having one end opening to theatmosphere and the opposite end connected with:

the suction side of the fan and means for delivering oil to theopposite'end of the 7.. In an oil burner, an electric motor having ahollow shaft, an atomizing' cup secured on one end of said shaft, astationary pipe passing through the hollow shaft and extending into theatomizing cup, and means for passing oil through said pipe to theatomizing cup to permit the oil during its passage to become heated byheat radiated from the motor and simultaneously to partially remove saidheat to cool the motor.

inga hollow shaft, an atomizing cup secured'on one end of the hollowshaft, and

'fmeans forpassing' oil th-roughthe hollow shaft to the atomi'zing cupto permit the oil during its passage through the-shaft to be- 8. In anoil burner, an electric motor hav-- come heated by heat conducted fro-mthe motor and simultaneously to partially aremove said heat to cool themotor.

In testimony whereof I-have hereunto set my hand inthe presence of twosubscribing witnesses.

WILLIAM R. RAY.

Witnessesr I HEALEY;

M. E. EWING.

